public ImmutableSetMultimap<K, V> toImmutable() {
final MutableMap<K, ImmutableSet<V>> map = UnifiedMap.newMap();
this.map.transformValues(
new Function2<K, MutableSet<V>, Object>() {
public Object value(K key, MutableSet<V> set) {
return map.put(key, set.toImmutable());
}
});
return new ImmutableSetMultimapImpl<K, V>(map);
}
@Override
protected MutableMap<K, MutableSet<V>> createMap() {
return UnifiedMap.newMap();
}
@Override
protected MutableMap<K, MutableSet<V>> createMapWithKeyCount(int keyCount) {
return UnifiedMap.newMap(keyCount);
}